Review on 🛠️ High-Quality Carburetor Replacement for Yamaha Raptor 660R YFM660 YFM 660R Carb 2001-2005 by JDMSPEED by Dontra Majmudar

The pilot jet on the left carburetor is larger than stock. This means you cannot change it. So unless you run like a regular pilot, these carbs are not for you. In addition, the guide screws also have different threads. Secondary and standard fuel screws will not fit. But they work fine, just don't expect to be able to embed them other than the mesh and pins.